print

2024-06-06 17:42:35 +08:00
parent 80dd69b366
commit 6f8082ff50
5 changed files with 131 additions and 1 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1 +1 @@
-/node_modules
+node_modules
--- a/src/js/print/assets/test.pdf
+++ b/src/js/print/assets/test.pdf
--- a/src/js/print/index.html
+++ b/src/js/print/index.html
@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Document</title>
+  </head>
+  <body>
+    <button onclick="handlePrint()">打印</button>
+    <script src="./node_modules/print-js/dist/print.js"></script>
+    <script src="./node_modules/pdf-lib/dist/pdf-lib.js"></script>
+    <script>
+      async function handlePrint() {
+        const pdfUrls = [
+          "./assets/test.pdf",
+          "./assets/test.pdf",
+          "./assets/test.pdf",
+        ];
+        const url = await mergePDFs(pdfUrls);
+        // 调用打印功能，无需打开文件再手动打印
+        printJS(url);
+      }
+
+      // 批量打印与分页打印
+      async function mergePDFs(pdfUrls) {
+        // 创建一个新的空白PDF文档
+        const mergedPdfDoc = await PDFLib.PDFDocument.create();
+
+        for (const pdfUrl of pdfUrls) {
+          // 获取PDF文件的二进制数据
+          const pdfBytes = await fetch(pdfUrl).then((response) =>
+            response.arrayBuffer()
+          );
+
+          // 将获取到的PDF文件添加到新的文档中
+          const pdfDoc = await PDFLib.PDFDocument.load(pdfBytes);
+          // 如果单个PDF为多页，则要一页一页往新建的PDF中添加
+          const copiedPages = await mergedPdfDoc.copyPages(
+            pdfDoc,
+            pdfDoc.getPageIndices()
+          );
+          copiedPages.forEach((page) => mergedPdfDoc.addPage(page));
+        }
+
+        // 将合并后的PDF保存为Blob对象
+        const mergedPdfBytes = await mergedPdfDoc.save();
+        const mergedPdfBlob = new Blob([mergedPdfBytes], {
+          type: "application/pdf",
+        });
+        return URL.createObjectURL(mergedPdfBlob);
+      }
+    </script>
+  </body>
+</html>
--- a/src/js/print/package-lock.json
+++ b/src/js/print/package-lock.json
@ -0,0 +1,59 @@
+{
+  "name": "printjs",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "printjs",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "pdf-lib": "^1.17.1",
+        "print-js": "^1.6.0"
+      }
+    },
+    "node_modules/@pdf-lib/standard-fonts": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/@pdf-lib/standard-fonts/-/standard-fonts-1.0.0.tgz",
+      "integrity": "sha512-hU30BK9IUN/su0Mn9VdlVKsWBS6GyhVfqjwl1FjZN4TxP6cCw0jP2w7V3Hf5uX7M0AZJ16vey9yE0ny7Sa59ZA==",
+      "dependencies": {
+        "pako": "^1.0.6"
+      }
+    },
+    "node_modules/@pdf-lib/upng": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/@pdf-lib/upng/-/upng-1.0.1.tgz",
+      "integrity": "sha512-dQK2FUMQtowVP00mtIksrlZhdFXQZPC+taih1q4CvPZ5vqdxR/LKBaFg0oAfzd1GlHZXXSPdQfzQnt+ViGvEIQ==",
+      "dependencies": {
+        "pako": "^1.0.10"
+      }
+    },
+    "node_modules/pako": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmmirror.com/pako/-/pako-1.0.11.tgz",
+      "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw=="
+    },
+    "node_modules/pdf-lib": {
+      "version": "1.17.1",
+      "resolved": "https://registry.npmmirror.com/pdf-lib/-/pdf-lib-1.17.1.tgz",
+      "integrity": "sha512-V/mpyJAoTsN4cnP31vc0wfNA1+p20evqqnap0KLoRUN0Yk/p3wN52DOEsL4oBFcLdb76hlpKPtzJIgo67j/XLw==",
+      "dependencies": {
+        "@pdf-lib/standard-fonts": "^1.0.0",
+        "@pdf-lib/upng": "^1.0.1",
+        "pako": "^1.0.11",
+        "tslib": "^1.11.1"
+      }
+    },
+    "node_modules/print-js": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmmirror.com/print-js/-/print-js-1.6.0.tgz",
+      "integrity": "sha512-BfnOIzSKbqGRtO4o0rnj/K3681BSd2QUrsIZy/+WdCIugjIswjmx3lDEZpXB2ruGf9d4b3YNINri81+J0FsBWg=="
+    },
+    "node_modules/tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmmirror.com/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
+    }
+  }
+}
--- a/src/js/print/package.json
+++ b/src/js/print/package.json
@ -0,0 +1,16 @@
+{
+  "name": "printjs",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "pdf-lib": "^1.17.1",
+    "print-js": "^1.6.0"
+  }
+}